Feature: 1. High-quality sound UHF wireless microphone system with less than 5ms delay, less delay and less signal loss. 2. Built-in rechargeable battery: It can work for more than 5 hours after being fully charged. The transmitter and receiver can be charged simultaneously using a dual-port USB cable. You can know the battery level and related channel indicators when you turn it on. 3. One-key multi-channel: One-key pairing, multi-channel support, frequency division and frequency hopping can be set, plug and play, compact and lightweight, making the wireless microphone system easy to use and easy to carry. 4. Wideof uses: equipped with XLR female to 6.5mm male microphone adapter, compatible with mixers, recorders, speakers, sound reinforcement systems, power amplifiers, etc. Provide stable and reliable wireless(Note: the transmitter is only suitable for dynamic microphones, no power supply or battery, not suitable for condenser microphone devices.) Description: Product name: Transmitter Color: Black Frequency 500-590MHz Adjustable channel: 16 adjustable frequency points Channel Spacing: 0.5-2.5MHz Modulation method: DQPSK Frequency stability: ±3PPM Frequency Response: 40Hz-20KHz Working 50-80M Built-in battery: 14500 lithium battery Operating voltage: built-in 3.7V Packing list: Transmitter x 1 Receiver x 1 6.5 Adapter x 1 Charging Line x 1 Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks. --XLR transmitters and XLR receivers work with any dynamic microphones, mixers, PA systems (not suitable for condenser microphones or powered devices). --Provide stable and reliable wireless --Make sure you get good performance every time. --No cables, wirelessup to 60M (depending on environmental factors). --High-quality audio provides steady sample rate stereo uncompressed digital